# Electret ionization chambers { "id": "S2006001736", "title": "Electret ionization chambers", "url": "/topics/S2006001736", "kind": "topic-directory", "aeo_cohort": "topic-directory", "provider": "lcsh", "revision": "a993c38c5094e41f", "catalogue_revision": "f050b5d4780b1289", "numeric_address": "324263581455622692", "address_version": "morton4x16-v1", "coordinates": [ 0, 478, 17569, 8192 ], "answer_status": "Directory metadata; local answer requires separate source review", "truth_status": "Subject descriptor, not a factual answer or a demonstrated knowledge gap" } Directory metadata is not a factual answer or evidence of a global knowledge gap. Source: https://id.loc.gov/authorities/subjects/sh2006001736 No owner-reviewed local answer yet.